Reduction in PAPR of OFDM system using a revised companding

Authors:
Xiao Huang;Jianhua Lu;Junli Zheng
Affiliations:
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China;Dept. of Electr. Eng., Tsinghua Univ., Beijing, China;Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Venue:
ICCS '02 Proceedings of the The 8th International Conference on Communication Systems - Volume 01
Year:
2002

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Learning vector quantization network for PAPR reduction in orthogonal frequency division multiplexing systems

UC'07 Proceedings of the 6th international conference on Unconventional Computation

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Abstract

We propose a revised companding method to reduce peak-to-average power ratio (PAPR) of the over-sampled OFDM signals. By combining the advantage of the traditional companding and clipping, the proposed method can achieve a large reduction in PAPR with low BER performance. In particular, through studying the complementary cumulative distribution function (CCDF) of the PAPR of an OFDM signal, this paper shows that the proposed method can outperform the previous method substantially.